NASA has given the green light to the launch of Discovery Nov 1 after resolving a problem associated with a small fuel leak.
The space agency said Monday, Discovery, which will be making its last voyage to space as NASA winds down the space shuttle programme, was cleared for blastoff at 2040 GMT after completing a flight readiness review.
NASA engineers drained a fuel line and replaced two seals to ensure a leak would not persist.
NASA is planning at least one more launch of a space shuttle after Discovery some time next year and has not ruled out a second flight.
Discovery will be carrying the last US module to the International Space Station, designed provide additional storage and laboratory space. Discovery will bring additional spare cargo and a new, different kind of resident the first human like robot in space, called Robonaut 2 (R2).